Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4, actions/upload-artifact@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Possible null reference argument for parameter 'item' in 'void DataPersist.Write(BinaryWriter writer, object item)'.

The using directive for 'CatDb.Server.Services' appeared previously in this namespace

Dereference of a possibly null reference.

Field 'WTree.Node.StructuralLsn' is never assigned to, and will always have its default value 0

Possible null reference argument for parameter 'keyType' in 'Locator WTree.CreateLocator(string name, int structureType, DataType keyDataType, DataType recordDataType, Type keyType, Type recordType)'.

Possible null reference argument for parameter 'item' in 'void IPersist<object>.Write(BinaryWriter writer, object item)'.

Possible null reference argument for parameter 'item' in 'void IPersist<object>.Write(BinaryWriter writer, object item)'.

Possible null reference assignment.

Possible null reference argument for parameter 'type2' in 'DataTransformer<TRecord>.DataTransformer(Type type2, Func<Type, MemberInfo, int>? membersOrder1 = null, Func<Type, MemberInfo, int>? membersOrder2 = null)'.